Cache multiple target directories from 'target-dir'

wasm-workspace/.cargo/config.toml

@@ -0,0 +1,2 @@
+[build]
+target = "wasm32-unknown-unknown"

wasm-workspace/.gitignore

@@ -0,0 +1 @@
+Cargo.lock

wasm-workspace/Cargo.toml

@@ -0,0 +1,18 @@
+[workspace]
+members = ["."]
+
+[package]
+name = "wasm-workspace"
+version = "0.1.0"
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+reqwest = "0.11.0"
+async-std = "1"
+tracing = "0.1"
+tracing-futures = "0.2"
+serde = "1"
+serde_json = "1"
+toml = ""

wasm-workspace/src/main.rs

@@ -0,0 +1,3 @@
+fn main() {
+    println!("Hello, world!");
+}